Which of the following statements is wrong when creating an upgrade task?

Which of the following statements is wrong when creating an upgrade task?
A . The upgrade operator must use the "admin" level user to perform the health check, otherwise some check items will fail and reduce the check efficiency.
B . For gateway NEs, if you check the "If the NE to be loaded is a gateway NE, force FTP/SFTP protocol to load" configuration item, you need to configure an FTP/SFTP server on the network management server. Improve loading speed
C . “Force and activate.” In this mode, all groups are activated in parallel, which may cause service interruption.
D . Check "Use package customization. The software added by the user is a partial package. That is, it is matched according to the single board on the network element. It can improve the efficiency of adding."

Answer: A